Remark 2.14 ([1]})
Let \((A,\mathfrak {m})\)  be a Noetherian local ring and \(M\)  a Cohen-Macaulay \(A\) -module. If \(M\)  has minimal multiplicity then \(G(M)\)  is Cohen-Macaulay \(G(A)\) -module. Also, \(h_M(z)=h_0(M)+h_1(M)z\) .
